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Chimney Dampers / Lyemance Lock Top
Please choose one of products below...

$161.75 - 8 x 8 Lyemance Lock Top... top sealing chimney damper. Shipping Included.
$155.75 - 8 x 13 Lyemance Lock Top... top sealing chimney damper. Shipping Included.
$186.50 - 8 x 17 Lyemance Lock Top... top sealing chimney damper. Shipping Included.
$167.25 - 13 x 13 Lyemance Lock Top... top sealing chimney damper. Shipping Included.
$211.50 - 13 x 17 Lyemance Lock Top... top sealing chimney damper. Shipping Included.
$236.50 - 17 x 17 Lyemance Lock Top... top sealing chimney damper. Shipping Included.

Free Shipping on Lyemance dampers. (Lower 48 states only. Ships UPS ground)

Fits 6 common flue sizes
Easy Installation
Lifetime Warranty

Click for a bigger pic
Stock Sizes Fits inside flue sizes
8" x 8" 6" x 6" to 9" x 9"
8" x 13" 6" x 9" to 9 1/2" x 12 1/2"
8" x 17" 6" x 14" to 9" x 17 1/2"

13" x 13"

9" x 9" to 12 1/2" x 12 1/2"
13" x 17" 9" x 14" to 12 1/2" x 17 1/2"
17" x 17" 14" x 14" to 17 1/2" x 17 1/2"

         SWEEPS RING COMBO SPECIAL         
Order any size Lyemance LockTop damper and add a Sweeps Ring for only $31.99
Shipping Included*    Sweeps Ring must be ordered and ship with LockTop damper to be valid


 

Sizing for a Lock Top damper
Masonry, brick or clay liners need to be measured by its INSIDE measurement.

Older "clay" liners and newer ceramic liners will vary in their inner and outer measurements.

Typically... a standard size 8x12 clay liner, sometimes called a 9x13, will have an inner measurement of approximately 6 x 10 to as big as 7 x 11 1/2".

Measure and give us a call if you would like help sizing for a Lock Top damper.


Made to fit clay or terracotta flues

Always measure the inside & outside of the flue tile side to side, never corner to corner.

Fits square or rectangular flues with "rounded" corners May not work on oval flue liners

ADD a Cable Shield for $20** or Lyemance LockTop 50' Cable for only $22**

COMBO SPECIAL pricing valid ONLY on purchases of a Cable Shield or Cable AND Lyemance Damper


Replaces leaky throat dampers Chimney fire safety device Keeps animals out of your chimney
Energy efficient - seals in furnace heat and air conditioning Made of cast aluminum and stainless steel
Lock Top Video
and Installation
Lyemance
Lock Top Video


Lock-Top's rubber gasket seals tightly like a storm door for your fireplace, and keeps heating and cooling dollars where they should be...in your home.

Lock-Top mounts on top of your chimney to keep out animals and rain.

Lock-Top easily operates from inside your firebox and seals tight every time you close it—eliminating any draft.


Cast-iron plate and frame do not seal tightly, allowing energy dollars to escape.

Traditional dampers are located in the "throat" of a fireplace. They are made of cast-iron and are housed in a low-tech frame work.

These cast-iron dampers do not seal well—they have a leaky, rough, metal-to-metal seal.

Recent lab studies have shown that even a new throat damper can leak up to $200 of heating and cooling a year. Imagine how much energy an old, rusted out damper leaks!


The Lock Top damper seals with a rubber gasket, not metal to metal like your current damper. A Lock-Top Damper seals tight, so virtually no air, and thus no heat or air conditioning gets lost up your chimney.

The Lock Top also eliminates downdrafts, seals out rain which can deteriorate the inside of your chimney, and prevents entry by pests like squirrels, raccoons, and nesting birds.

The Lyemance Lock Top Chimney Damper mounts on top of your chimney

 

Lyemance Lock Top Chimney Damper Gasket

Lyemance Chimney Damper

 


A cable drops down your flue and attaches to a handle which mounts where you can reach it for convenient opening and closing.

Superior stainless steel and cast-aluminum construction equal a lifetime warranty
The Lock-Top Damper is made of cast-aluminum and stainless steel, precision fitted with our special silicone rubber gasket. These high-quality materials add up to a factory lifetime warranty for you.
 


Why buy Lyemance brand Lock Top????
Take a look at the competition.

What is STAINLESS STEEL?
Stainless steel is a family of iron based alloys that must contain at least 10.5% CHROMIUM (Cr). The presence of chromium creates an invisible surface film that resists oxidation and makes the material "passive" or corrosion resistant (i.e. "stainless").

Grading Stainless Steel.
As a percentage, the first number is the amount of chromium that is contained in the stainless i.e. 18 is 18% chromium. The second number is the amount of nickel i.e. 8 stands for 8% nickel. So 18/8 means that this stainless steel contains 18% chromium and 8% nickel. This is a common name for Type 304 Stainless. The higher the numbers the more corrosion resistant the material. I wonder how much money was actually saved to make these "other" caps?